Housing buck installation drill jig



April 7, 1964 A. C. AMOS, JR

HOUSING BUCK INSTALLATION DRILL JIG 2 Sheets-Sheet 1 Filed May 9, 1962 ATTORNEY April 7, 1964 A. c. Amos, JR 3,127,796

HOUSING BUCK INSTALLATION DRILL JIG INVENTOR. ALVIN C. AMOSIJ'R ATTORNEY United States Patent O 3,127,796 HOUSING BUCK INSTALLA'IIN BREL .11G Alvin C. Amos, Sir., Schuylldil Haven, Pa., assigner to Aetna Steel Products Cerporation, New York, NX., a corporation of New York Fiied May 9, 1962, Ser. No. 193,489 9 Claims. (Cl. 77--62) This invention relates to jigs; and more particularly to door-frame installation drill jigs.

One object of the invention is the provision of a drill jig to facilitate the drilling of holes at the required locations in concrete or other floors and ceilings of houses or other buildings to receive nails or other fastening devices for securing door frames at predetermined positions to the floor and to the ceiling.

Another object is to provide a drill jig which can be readily moved to and releasably secured at the position at which a door frame is to be installed.

A further object is to provide a drill jig which can be used for the above indicated purposes without narrow limitation in respect to the space between the floor and the ceiling.

A yet further object is generally to provide a drill jig which is of simple and sturdy construction and well adapted for convenient use for the above indicated purposes or for other uses to which the jig might be put.

The above and other objects, features and advantages of the invention will be more fully understood from the following description considered in connection with the accompanying drawings which illustrate the presently preferred embodiment of the invention.

In the drawings:

FIG. l is an elevation of the jig shown in releasably clamped position between a oor and a ceiling;

FIG. 2 is a vertical sectional View along the line 2 2 of FIG. 1;

FIG. 3 is a cross sectional view on the line 3 3 of FIG. l;

FIG. 4 is a view partly in elevation and partly in section on the line 4-4 of FIG. l;

FIG. 5 is a top plan view of the top of the jig;

FIG. 6 is a bottom plan View of part of the bottom of the jig;

FIGS. 7 and 8 are sectional views on the line 7-7 and 8 8, respectively, of FIG. l; and

FIG. 9 is a perspective View, partly in section, of a door frame or buck and shows, more or less schematically, the installation of a door frame at a location where holes were drilled by a drill (not shown) and with the aid of the drill jig shown by FIGS. l to 8.

Referring now to the drawings in detail, the jig comprises a bottom or one end section 10, a top or opposite end section 12', and an intermediate section 14 which is adjustable in height by mechanism 16 which will be hereinafter described in sufficient detail. Except as specifically indicated, the various parts of the jig are preferably made of steel.

The bottom section comprises a channel member 18 and upstanding side plates 28 secured to the opposite sides, respectively, of said channel member in any suitable way, here shown as by bolts 22. A plurality of drill guide bushings 24 are secured in the web 26 of the external terminal port or channel member at or near each of the end portions thereof, as shown by FIGS. 6 and 8. Spring plungers 28 are mounted on channel 18 (FIGS. l, 4, 6, 7 and 8) by means of blocks which are fastened to channel web 26 by screws 32. These spring plungers are provided primarily to compensate for possible variations or irregularities in the oor surface longitudinally of member 18. The construction of spring plunger 28, which is a well known device per se, is best shown by ICC FIG. 7 where it is seen to comprise an externally threaded tubular member 34 adjustably screw threaded in the companion block 38. The plunger pin 36 projects through an opening 38 in the end of member 34 and has a head 4) positioned adjacent to the inner surface of said end against which it is biased by the compression spring which abuts the adjustable stop which is in adjustable screw threaded engagement with member 34 internally thereof near its open end 46. A lock nut (not shown) may be provided at the upper end of member 34 to releasably secure said member in adjusted position in block 30.

The top section 12 is substantially the same as the bottom section except that its parts are in vertically reversed relation, in comparison with the corresponding parts of bottom section 1i), and are indicated by the same numerals with prime designations. It will be observed, however, that top section 12 has a longitudinally extending lower part 48 which is mounted for vertical adjustment in and longitudinally of the intermediate section 14 as will be later described.

The intermediate section 14 includes a coupling part 52. The longitudinally extending upper part 50 of the bottom section 1i) is a channel member which is bolted to side plates 20 by bolts 54 and to coupling part 52 by bolts 56. Lower part 48 of top section 12 is secured to side plates 28 by bolts 58 and to a block 60 (FIG. 2) by screws 62. Said block 60, which is part of mechanism 16, is disposed internally of member 52 in vertical sliding engagement therewith and held thereby against rotation.

A vertically` disposed shaft is mounted for rotation about its own axis in a bearing 66 secured within coupling part 52 by screws 68. Said shaft is held against vertical movement by collars 70 and 72 and is in screw threaded engagement with block 60 in the threaded bore 74 so that rotation of said shaft results in vertical movement of block 60 and upper section 12 to which said block is secured. A bevel gear 76 fixed to shaft 64 at its lower end is in mesh with a bevel gear 78 on the rotary shaft 80 which is mounted on coupling part 52 as shown by FIG. 2. A crank handle 82, made of aluminum, is secured to shaft 80 for turning the latter to adjust top end section 12 vertically in relation to lower end section 10 for clamping the jig in position between the Hoor and the ceiling at the location at which the holes are to be drilled and to unclamp the jig after the holes are drilled. A collar 84 on shaft 64 provides a stop which, when engaged by block 60, limits the upward movement of section 12. The downward movement of said section is limited by collar 72.

As shown in FIG. 6, notches indicated at 85 are provided in the web 26 of the bottom channel member 18 to aid in positioning the jig in accordance with markings made on the floor to indicate the locations of the door frames. Also, it will be understood that in positioning the jig, a double-rod level of a known type may be engaged with the jig part 52 at a corner thereof to plumb the jig vertically in two directions at right angles t0 each other before the jig is finally clamped between the floor and the ceiling.

As illustrated schematically by FIG. 9, a metal door frame or buck 84 is secured to the ceiling C and to the floor F by fastening the struts 86 at their upper inturned ends 88 to the ceiling by nails or other suitable securing means passing through openings 9i) in the ends of the struts and driven into the drilled holes in the ceiling. Said struts 86 are adjustable in slots provided in the lateral members 91 which are secured at their ends to the buck and have provision for securement at their outer ends to the wall in which the buck is mounted. Wedging nails (not shown) are inserted in the slots of members 91 and are wedged against the struts to secure the door against vertical movement in relation to said struts after the struts are secured to the ceiling. The bottom of the buck is fastened to the oor by nails or other securing devices passing through holes in the lateral projections 92 of the bottom cross member of the buck and driven into the holes previously drilled into the oor F as described above. As the frame 84 and the manner of its securement are well known and do not per se form part of the invention, further description is considered unnecessary.

While I have shown and described the preferred embodiment of the invention, it will be understood that the invention may be embodied otherwise than as herein specilically illustrated or described, and that certain changes in the form and arrangement of parts and in the speciiic manner of practicing the invention may be made without departing from the underlying idea or principles of this invention.

Having thus described my invention, what I claim and desire to secure by Letters Patent of the United States is:

1. A jig comprising opposite jig-clamping end sections, an intermediate section to which said end clamping sections are attached, at least one of said end clamping sections being provided with at least one drill-guide opening, said end clamping sections extending transversely of and projecting beyond said intermediate section, at least one of said end yclamping sections being provided with spring pressed pin means extending endwise of the jig outwardly from said end clamping section, at least one of said end clamping sections being adjustably movable toward and away from the other of the end clamping sections, and means operatively connected to said one of said end clamping sections within said intermediate section for moving it adjustably toward and away from said other end clamping section to clamp said jig in drill-guide position.

2. A jig comprising opposite jig-clamping end sections, an intermediate section to which said end clamping sections are attached, at least one of said end clamping sections being providedv with at least one drill-guide opening, said end clamping sections extending transversely of and projecting beyond said intermediate section, at least one of said end clamping sections being provided with spring pressed pin means extending endwise of the jig outwardly from said end clamping section, at least one of said end clamping sections being adjustably movable toward and away from the other of the end clamping sections, and means mounted within said intermediate section and operatively connected to said one of said end clamping sections for moving it adjustably toward and away from said other end clamping section to clamp said jig in drillguide position.

3. A jig comprising opposite jig-clamping end sections, an intermediate section to which said end clamping sections are attached, at least one of said end clamping sections having a terminal part provided with an external surface in a plane transversely of its longitiudinal extent and provided with at least one drill-guide opening thereon, said intermediate section being supported by one of said end clamping sections and adjustably supporting the other of said end clamping sections, and means operatively connected to said other end clamping section within said intermediate section for moving it on said intermediate section toward and away from said one of said end clamping sections to clamp said jig in drill-guide position.

4. A jig comprising opposite jig-clamping end sections, an intermediate section to which said end clamping sections are attached, at least one of said end clamping sections being provided with at least one drill-guide opening, said end clamping sections extending transversely of and projecting beyond said intermediate section, at least one of said end clamping sections being provided with spring pressed pin means extending endwise of the jig outwardly from said end clamping section, and means operatively connected to said other end clamping section within said d intermediate section for moving it on said intermediate section toward and away from said one of said end clamping sections to clamp said jig in drill-guide position..

5. A jig comprising opposite jig-clamping end sections, an intermediate section to which said end clamping sections are attached, at least one of said end clamping sections being provided with at least one drill-guide opening, at least one of said end clamping sections being adjustably movable toward and away from the other of the end clamping sections, and means operatively connected to said one of said end clamping sections for moving it adjustably toward and away from said other end clamping section, said last mentioned means comprising a rotary shaft disposed in said intermediate section longitudinally thereof and held against longitudinal movement in relation to said end clamping sections and operatively connected between said intermediate part and said one of the end clamping sections for moving the latter toward and away from said other end clamping section to adjust the length of the jig, and means for rotating said shaft.

6. A jig comprising opposite jig-clamping end sections, an intermediate section to which said end clamping sections are attached, at least one of said end clamping sections being provided with at least one drill-guide opening, said end clamping sections extending transversely of and projecting beyond said intermediate section, at least one of said end clamping sections being provided with spring pressed pin means extending endwise of the jig outwardly from said end clamping section, at least one of said end clamping sections being adjustably movable toward and away from the other of the end clamping sections, and means mounted on said intermediate section and operatively connected to said one of said end clamping sections for moving it adjustably toward and away from said other end clamping section, said last mentioned means comprising a rotary shaft disposed in said intermediate section longitudinally thereof and held against longitudinal movement and operatively connected between said intermediate part and said one of the end clamping sections for moving the latter toward and away from said other end clamping section to adjust the length of the jig, and means for rotating said shaft.

7. A jig comprising opposite jig-clamping end sections, an intermediate section to which said end clamping sections are attached, at least one of said end clamping sections having a terminal part extending laterally beyond said intermediate section and provided with at least one drill-guide opening, at least one of said end clamping sections being adjustably movable toward and away from the other of the end clamping sections and having a part extending longitudinally of and disposed within said intermediate section, and means operatively connected to said last mentioned section within said intermediate section for moving said last mentioned section adjustably toward and away from said other end clamping section to clamp said jig in drill-guide position.

8. A jig comprising opposite longitudinally extending jig-clamping end sections, an intermediate section to which said end clamping sections are attached longitudinally thereof, at least one of said end clamping sections having a part extending longitudinally of said intermediate section and a terminal part provided with an external surface in a plane transversely of its said longitudinal part and provided with at least one drill-guide opening thereon, at least one of said end clamping sections being adjustably movable toward and away from the other of the end clamping sections, and means mounted within said intermediate section and operatively connected to said one of said end clamping sections for moving it adjustably toward and away from said other end section to clamp said jig in drill-guide position.

9. A jig comprising opposite jig-clamping end sections, a stationary intermediate section coaxial with said end clamping sections and to which said end clamping sections are attached, at least one of said end clamping sections being provided with at least one drill-guide opening, at least one of saidr end clamping Sections being adjustably movable toward and away from the other of said end clamping sections, and means disposed internally in said stationary intermediate section and being operatively connected to said one of said end clamping sections for moving it adjustably toward and away from said other end clamping section to clamp said jig in drill-guide position.

References Cited in the le of this patent UNITED STATES PATENTS 

1. A JIG COMPRISING OPPOSITE JIG-CLAMPING END SECTIONS, AN INTERMEDIATE SECTION TO WHICH SAID END CLAMPING SECTIONS ARE ATTACHED, AT LEAST ONE OF SAID END CLAMPING SECTIONS BEING PROVIDED WITH AT LEAST ONE DRILL-GUIDE OPENING, SAID END CLAMPING SECTIONS EXTENDING TRANSVERSELY OF AND PROJECTING BEYOND SAID INTERMEDIATE SECTION, AT LEAST ONE OF SAID END CLAMPING SECTIONS BEING PROVIDED WITH SPRING PRESSED PIN MEANS EXTENDING ENDWISE OF THE JIG OUTWARDLY FROM SAID END CLAMPING SECTION, AT LEAST ONE OF SAID END CLAMPING SECTIONS BEING ADJUSTABLY MOVABLE TOWARD AND AWAY FROM THE OTHER OF THE END CLAMPING SECTIONS, AND MEANS OPERATIVELY CONNECTED TO SAID ONE OF SAID END CLAMPING SECTIONS WITHIN SAID INTERMEDIATE SECTION FOR MOVING IT ADJUSTABLY TOWARD AND AWAY FROM SAID OTHER END CLAMPING SECTION TO CLAMP SAID JIG IN DRILL-GUIDE POSITION. 